Plant Structure
What is the source of free energy (ΔG) for moving protons out of mitochondria against their concentration and electrical gradients?

ATP
Glycolysis
Creatine phosphate
The redox reactions of electron transport

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Plant Structure
Which of the following statements about mitochondrial proteins is true?

All mitochondrial proteins are imported from the cytoplasm
All mitochondrial proteins are coded for and synthesized in the mitochondria
Mitochondrial proteins arise from other mitochondrial proteins
Some mitochondrial proteins are coded for and synthesized in the mitochondria and others

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Plant Structure
Which of the following statements about the outer mitochondrial membrane is not true?

The outer membrane contains porins
The outer membrane is highly permeable to substances of small molecular weight
The outer membrane is about 50% lipid and 50% protein by weight
The outer membrane is impermeable to hydrogen ions

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